CN111656134A

CN111656134A - Compass

Info

Publication number: CN111656134A
Application number: CN201880088113.8A
Authority: CN
Inventors: S·M·克洛波夫; A·S·克洛波夫; M·T·菲利蒙诺夫
Original assignee: S MKeluobofu
Current assignee: S MKeluobofu
Priority date: 2018-01-29
Filing date: 2018-09-13
Publication date: 2020-09-11
Also published as: EP3608631A1; RU2675070C1; WO2019147163A1; EP3608631A4; EP3608631B1

Abstract

The present invention relates to the field of terrestrial orientation. The invention can be applied to directional cross-country sports. The compass comprises a housing with magnetic hands (needles) and a plate. A strap (strap) is fixed to the plate. The compass can be held and worn on the finger by the loop. The plate has an edge line in the direction of motion. The extension of the edge line extends through the center of the housing and the second edge line. The second edge line is perpendicular to the edge line of the direction of motion. The second edge line is arranged behind the housing. The compass also contains additional edge lines. The additional edge line is parallel to the edge line of the direction of motion. The aim is to reduce the deviation when the direction of movement is transferred from the compass to the movement region.

Description

Compass

Technical Field

The invention relates to a compass for orientation in the field. The invention can be applied to directional cross-country sports.

Background

Directional off-road sports is a type of sports in which an athlete (runner) must pass through a number of checkpoints (KP) by means of a directional off-road map and compass. The check points are set in the field. Performance is typically determined based on the desired transit time.

A task that exists for athletes in the field is that the direction runs constantly over a segment of the distance from KP a to KP B (moving along azimuth). The athlete obtains a directed off-road map for this purpose. KP a and b are logged (represented) on the map. KP a and b are connected to each other by a line (segment AB). The line in which the magnetic north direction (magnetic north direction) is oriented on the map is also marked. The angle between the line of magnetic north on the map and the segment AB is referred to as the map azimuth of the segment AB. To solve the proposed task, the athlete must divert the bearing angle from the map to the surroundings. The player must then start the movement along the azimuth (in terms of direction angle). A compass is used for this purpose.

To speed up this determination a compass is used. The compass needle is located inside an airtight flat housing. The housing is filled with a liquid. The north-south direction is marked on the housing. Furthermore, an angle dial having scales may be disposed on the housing.

The housing is rotatably secured to the plate. The plate has a line of motion direction (A.W.Iwanow, A.A.Schirinja: model Vorbereituring von)

M., Sowetskij sport, 2010, page 6). The runner places the board on a map. The movement direction line coincides here with the desired movement direction on the map or is parallel to the desired movement direction. The runner then turns so long until the compass needle coincides with the north-south direction on the map. At this time, the line shows the direction of movement toward which the person must run in the field. Errors in determining the direction of movement result in time in finding the stationAnd (4) loss.

In the case of an oriented off-road user, a compass is provided, in particular, in which the plate is held on the thumb. The compass has a loop. The lap ring is fixed on the plate. The compass is placed on the thumb by means of the attachment. The line of the direction of movement coincides with the edge of the plate extending straight. The extension of the straight plate edge extends through the axis of the housing (page 8, supra). An edge with a colored line on the edge is called an edge line.

The compass is considered to be closest to the proposed device. The compass is chosen as a typical example. A disadvantage of the known compass is that deviations occur when the direction of movement is transferred from the compass to the area of movement.

From the perspective of an oriented off-road expert, "thumb compass" is not suitable for error-free movement in the direction of the directional angle (page 9, supra).

When moving along the azimuth, the edge line of the compass plate must be parallel to the moving direction line of the runner. If parallelism is not maintained and an angle between the two lines is formed, the angle indicates that the azimuth angle was erroneously determined. According to the human anatomy, the line of motion direction of a runner is perpendicular to the runner's body. In order to move along the azimuth angle accurately, the edge line of the compass board must therefore be perpendicular to the runner's body.

The conditions may be satisfied by the runner by performing different operations. The different operations are for example as follows:

the runner draws a virtual line from the edge line up to the runner's body. Near the runner's body, the runner draws a line in the brain that is perpendicular to the virtual extended edge line. The runner then tests the drawn vertical line in the brain for parallelism with the line on which the runner's shoulders lie. The runner also rotates the compass board slightly, if necessary, until the two lines are parallel to each other.

Such operations through virtual lines, in particular through perpendicular lines, are inaccurate. This operation causes a deviation. The deviation will accumulate. Thereby negatively affecting the determination of the azimuth angle. Thus, the approach is a potential source of error. This approach is time consuming. Furthermore, the described approach requires a high degree of attention.

Disclosure of Invention

The aim of the invention is to reduce the deviation when the direction of movement is transferred from the compass to the movement region.

This object is achieved by a directional off-road compass comprising a housing with a magnetic needle and a plate. A strap (strap) is fixed to the plate. The compass is held on the finger by the loop. The plate has an edge line in the direction of motion. The extension of the edge line extends through the centre of the housing. The compass plate is provided with a second edge line. The second edge line is perpendicular to the edge line of the direction of motion. The second edge line is arranged behind the housing.

The second edge line eliminates the runner from having to arrange the edge line of the board perpendicular to the runner's body. This approach is time consuming, requires attention and causes potential errors in establishing the virtual line. This process is replaced by the task of maintaining the parallelism of two lines that are not virtual, but actual. This task can be done more easily, faster and with minimal deviation. Thus improving the accuracy of the determination of the azimuth angle. The time and effort required by the runner is reduced.

An additional positive effect of adding a second edge line is that the parallelism of the edge line to the line of the runner's body can be controlled by peripheral observation. This cannot be done for the edge lines in the direction of motion. Azimuth accuracy can be maintained without having to focus on edge lines. The runner has the possibility of addressing additional directional tasks here.

The proposed invention enhances the effect to be achieved by the compass having additional edge lines. The additional edge line is parallel to the edge line of the direction of motion.

Drawings

The invention will now be described in detail with reference to the accompanying drawings. In the drawings:

fig. 1 shows a plan view of a compass, in which,

1, a shell body is arranged in the shell body,

2, the number of the plates is 2,

3, a loop is lapped on the surface of the steel,

4 the edge line of the direction of movement,

5 edge lines perpendicular to the direction of movement,

6 opening for the thumb (edge line perpendicular to the direction of movement),

7 compass needle (line on which the shoulder of runner is located)

And

fig. 2 shows the arrangement of the additional edge line 8.

Detailed Description

The compass is used according to the invention as follows:

the loop 3 surrounds the thumb, in this case the left thumb. The map is pressed onto the plate 2 through the opening 6 by means of the thumb. The map is rotated. The edge line 4 of the direction of movement must here coincide with the desired direction on the map. The runner rotates the housing 1 with his right hand for such a long time that the north-south direction on the housing 1 coincides with the north-south direction on the map. The runner then modifies the arrangement of the compass relative to his body according to the edge lines 5. The task of the runner is here to achieve a parallelism of the edge line to the line on which the runner's shoulders lie. The runner then turns. The compass needle 7 must coincide with the north-south direction on the housing 1. The runner extends the edge line 4 in the brain through his line of sight and determines the line of the direction of movement in the field. The runner runs and controls the arrangement of the compass according to the edge line 5. Furthermore, the runner controls the compass needle 7 to coincide with the north-south direction on the housing 1. The runner then corrects the current (actual) running direction according to the edge line 4.

Thereby, the deviation can be reduced based on the edge line 5. This deviation is due to the offset of the compass relative to the runner's body while running. The additional edge line 8 simplifies the correct placement of the compass.

An additional positive effect of adding perpendicular edge lines is that the edge lines of the motion direction can be narrowed (shortened) without negatively affecting the azimuth accuracy in determining and maintaining. This is possible because the edge lines are not involved in the proper placement of the board relative to the runner's body. Thus, the free space for reading the map near the thumb is increased. The board no longer blocks the portion of the map that relates to the runner's location. Thereby improving the readability of the map in the orientation-relevant area. The risk of errors is also reduced.

Claims

1. Directional cross country compass, comprising a housing with magnetic hands (needles) and a plate on which a strap is fixed, by means of which the compass is held and worn on the fingers, the plate having a rim line of a direction of movement, the extension of which extends through the center of the housing, characterized in that the compass plate has a second rim line which is perpendicular to the rim line of the direction of movement, which second rim line is arranged behind the housing.

2. Compass according to claim 1, characterized in that the compass has additional edge lines, which are arranged parallel to the edge lines of the movement direction.